Japan's 40 other operable reactors remain shut in the aftermath of the massive earthquake and tsunami in March 2011 that caused a meltdown at Tokyo Electric Power Co.’s Fukushima Dai-Ichi facility. Twenty-five have applied to restart.

More nuclear-powered electricity generation will help reduce Japan’s fuel import bill and lead to lower electricity rates for consumers. The restart will also help the government reach its goal of having nuclear power make up as much as 22 percent of the nation’s energy needs by 2030. A total of about 30 to 33 reactors will need to restart to meet the government’s target, according to Syusaku Nishikawa, a Tokyo-based analyst at Daiwa Securities Co.

Rob Chang, a managing director and head of metals and mining for Canada, forecasts three other Japanese reactors will come back online in 2016, bringing the nation’s total to five. Eight more will start in 2017 and a total of 37 reactors will be online by 2020.

Japan imported about 85 million metric tons of LNG last year, down 3.9 percent from the previous year in the first decline since 2009, according to data from the country’s finance ministry. Thermal coal imports rose to a record.

The country’s LNG imports will fall by 2.4 million tons this year and by a further 2.2 million tons in 2017, largely because of the restart of nuclear plants.